#231331

#231331

Color Values

HEX

#231331

RGB

35, 19, 49

HSL

272.0, 44.1%, 13.3%

HSV

272.0, 61.2%, 19.2%

CMYK

28.6%, 61.2%, 0.0%, 80.8%

OKLCH

0.2251 0.0592 306.9

Properties

Cool Dark Nearest: RAL 5013 Cobalt Blue

Color Harmonies

Complementary

#231331

#213113

Analogous

#141331

#311330

#231331

Triadic

#231331

#312313

#133123

Split Complementary

#231331

#303113

#133114

Tetradic

#231331

#311413

#213113

#133031

Color Blindness Simulation

Original

#231331

Protanopia

#1C1C2A

Deuteranopia

#1D1E28

Tritanopia

#222423

Achromatopsia

#191919

CSS Usage

background-color: #231331;
color: #231331;
border-color: #231331;
Nearest Tailwind: Slate 900 #0F172A

Tailwind Shades

50
#F8F4FA
100
#EEE6F4
200
#DCCCEB
300
#C4A7DD
400
#A377CA
500
#8347B8
600
#693993
700
#542E76
800
#42245C
900
#321D44
950
#1F122B

Contrast Checker

Text on white

17.37:1

AA Pass AAA Pass

Text on black

1.21:1

AA Fail AAA Fail

Related Articles

Brand Stories

Pantone Colors by Decade: The 2000s, 2010s, and 2020s Compared

Feb 01, 2026
Tutorials

Responsive Color: Adapting Colors for Different Screens

Jan 23, 2026
Tutorials

Color for Data Storytelling: Beyond Default Chart Colors

Jan 21, 2026